Kata told NRL.com on Tuesday he planned on following the lead of Cronulla prop Andrew Fifita, representing Tonga over his adopted homeland.
"Right now, I want to stay strong for Tonga," he said.
"It's a personal decision, I don't talk about it with the other Tongan boys here at the Warriors, but my family supports me either way and that's the decision I have made."
The powerhouse centre hasn't spoken at length with new Kiwis coach Michael Maguire yet, but regardless won't be changing his mind.